Which of these is an example of transpiration? a. snow falling on the slopes of mt. everest b. steam rising from lake michigan in the morning c. trees in the canadian forest releasing water vapor d. clouds creating thunderstorms in the skies over texas

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

c. is the correct answer